Geez, I didnt know there were soo many exchanges trading BCH. I knew of Kraken and Bittrex. Is it not possible that these are old figures because BCH is $623 on Coin Market Cap? Why does Kraken and Bittrex still should $200 something.
Ofcourse Bittrex will take the lead and it is expected as amoung the exchanges listed by the OP, only Bittrex is the biggest campaign. Poloniex has not supported bitcoin Cash or they might as well list it late, after seeing the outcome of BCC in the first few days of its launch. After all they will not want to launch a shit coin on their exchange
over than 30k btc the current volume total on bittrex now and i think that makes sense most of the traders will choose only to trustable exchange to ensure they will have not a problem during trade for BCC and bittrex is good options to do so